CN100422364C - Superfine copper alloy wire and method for manufacturing same - Google Patents
Superfine copper alloy wire and method for manufacturing same Download PDFInfo
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- CN100422364C CN100422364C CNB2005100660676A CN200510066067A CN100422364C CN 100422364 C CN100422364 C CN 100422364C CN B2005100660676 A CNB2005100660676 A CN B2005100660676A CN 200510066067 A CN200510066067 A CN 200510066067A CN 100422364 C CN100422364 C CN 100422364C
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12896—Ag-base component
Abstract
This invention provides an extra-thin copper-alloy wire combining >=800 MPa tensile strength and >=80% IACS electric conductivity and also to provide its manufacturing method. The method of manufacturing the extra-thin copper-alloy wire is a method for manufacturing the extra-thin copper-alloy wire 30 having <=0.05 mm final wire diameter. First a molten copper alloy 10, where 1.0 to 3.5 wt.% Ag 12 is incorporated into a copper matrix 11 in which the sum total of impurity concentrations is made to <=10 ppm, is poured into a mold to undergo casting. After the pouring, unsolidified molten copper alloy 10 is cooled at 400 to <500 [deg.]C/min cooling rate to form a casting 20. Cold working is applied as diameter reduction working to the casting 20, and then heat treatment is applied at 300 to 550[deg.]C for 0.5 to 20 h to a wire-drawn material 21 after the cold working .
Description
Technical field
The present invention relates to superfine copper alloy wire and manufacture method thereof, relate in particular to the superfine copper alloy wire of the signal wire that is used for electronics, electric power supply line etc.
Background technology
Miniaturized electronics etc. is supplied with and the superfine copper alloy wire of distribution for the input and output or the electric power of signal, required excellent electroconductibility, intensity, resistance to bend(ing), wire drawing.In the past, as the conductor of superfine copper alloy wire, the Cu-Sn of working strength excellence is that alloy wire or Cu-Sn-In are alloy wire.
In recent years, in superfine copper alloy wire, the thin footpathization of conductor is progressive.In order to suppress to follow the carefully increase of the conductor resistance of footpathization of conductor, the high conductivityization of conductor.In addition, follow the thin footpathization of conductor, slight loading will make wire rod cut off easily, so want the high strength of conductor for fear of the fracture of wire rod.As the copper alloy wire of high strength, high conductivity preferably Cu-Ag be alloy wire.As Cu-Ag is the manufacture method of alloy wire, for example can enumerate following manufacture method.
(1) the casting rod of Cu-2～14 weight %Ag alloys is implemented cold working and thermal treatment, obtain the method for the copper alloy wire of high strength, high conductivity.Thermal treatment is to implement 1～100 hour (opening the 2000-199042 communique with reference to the spy) 400～600 ℃ temperature.
(2) ingot casting of Cu-1～10 weight %Ag alloys is implemented cold working and thermal treatment, obtain the method for the copper alloy wire of high strength, high conductivity.Thermal treatment divides two stages to carry out, and implements 0.5～5 hour 700～950 ℃ temperature, implements 0.5～40 hour (with reference to No. 3325641 communique of special permission) in the temperature of 250～400 (not containing 400) ℃.
(3) the soft blank of the copper alloy of Cu-1.0～4.5 weight %Ag alloys is implemented cold working and thermal treatment, obtain the method for the copper alloy wire of high strength, high conductivity.Thermal treatment is to implement 1 second～30 minutes (opening flat 11-293431 communique with reference to the spy) 300～550 ℃ temperature.
(4) the casting rod of Cu-1.0～15.0 weight %Ag alloys is implemented cold working and thermal treatment, obtain the method for the copper alloy wire of high strength, high conductivity.Thermal treatment is to implement 1～30 hour (opening the 2001-40439 communique with reference to the spy) 400～500 ℃ temperature.
Summary of the invention
But, utilize in each copper alloy wire that the method for above-mentioned (1)～(4) obtains any one, line is directly reached under the situation of superfine wire of 0.008～0.05mm, just be difficult to get both more than or equal to the high-tensile of 800MPa with more than or equal to the high conductivity of 80%IACS.
Consider the above fact and the objective of the invention is to of creating, provide to have concurrently more than or equal to the tensile strength of 800MPa with more than or equal to the superfine copper alloy wire and the manufacture method thereof of the specific conductivity of 80%IACS.
In order to achieve the above object, the superfine copper alloy wire of relevant claim 1 of the present invention is the superfine copper alloy wire that finish line directly is less than or equal to 0.05mm, it is that the volume ratio of the eutectic phase of the Cu of whole volumes of Cu-1.0～3.5 weight %Ag and the line is busy material and Ag is that 3～20% copper alloy constitutes by chemical constitution, and tensile strength more than or equal to 800MPa, specific conductivity more than or equal to 80%IACS.
In addition, the superfine copper alloy wire of relevant claim 2 of the present invention is superfine copper alloy wires that finish line directly is less than or equal to 0.05mm, its the volume ratio that by chemical constitution is the eutectic phase of the Cu of whole volumes of Cu-1.0～3.5 weight %Ag and the line is busy material and Ag be the body that constitutes of 3～20% copper alloy around the Ag tunicle is set, and tensile strength more than or equal to 800MPa, specific conductivity more than or equal to 80%IACS.
On the other hand, the manufacture method of the superfine copper alloy wire of relevant claim 3 of the present invention is manufacture method that finish line directly is less than or equal to the superfine copper alloy wire of 0.05mm, its summation in impurity concentration is less than or equal in the copper base metal of 10ppm the molten alloyed copper that the ratio with 1.0～3.5 weight % is contained Ag and is poured in the casting mold and casts, with the not solidified molten alloyed copper after the speed of cooling cooling cast of 400～500 (not containing 500) ℃/min and form cast body, this cast body as the cold worked while of undergauge processing and implementation, is implemented recrystallize to the hot candied material after this cold working and handled.
Here, handle, can carry out 300～550 ℃ * 0.5～20 hour thermal treatment as recrystallize.And, preferably the hot candied material after this thermal treatment is implemented chilling and handles.
In addition, handling the rapid heating and the chilling that also can carry out 600～900 ℃ * 5～120 seconds as recrystallize handles.Preferably the hot candied material after this rapid heating and the chilling processing being implemented plating Ag handles.
According to the present invention, performance can access the effect of the such excellence of the superfine copper alloy wire of high-tensile, high conductivity.
Description of drawings
Fig. 1 is the schema of expression about the manufacture method of the superfine copper alloy wire of a kind of preferred forms of the present invention.
Fig. 2 is the schema of expression about the manufacture method of the superfine copper alloy wire of another kind of preferred forms of the present invention.
Among the figure, 10 is molten alloyed copper; 11 is high-purity C u (copper base metal); 12 is Ag; 20 is cast body; 21 is hot candied material; 30 is superfine copper alloy wire.
Embodiment
Below, a kind of preferred forms of the present invention is described.
The superfine copper alloy wire of relevant a kind of preferred forms of the present invention is the superfine copper alloy wire that finish line directly is less than or equal to 0.05mm, preferred 0.008～0.05mm, and it is that the copper alloy monomer of Cu-1.0～3.5 weight %Ag constitutes by chemical constitution.The monomeric phase constitution of this copper alloy is, the Cu of fibrous (wire-shaped) and the eutectic phase of Ag are dispersed in the copper matrix with 3～20% ratio of whole volumes of wire rod.The superfine copper alloy wire of relevant present embodiment has the tensile strength more than or equal to 800MPa, preferred 840～1200MPa, more than or equal to 80%IACS, be preferably greater than or equal the specific conductivity of 84%IACS.
At this, Ag concentration is defined as 1.0～3.5 weight %, if be that the volume fraction of eutectic phase just surpasses 20% because Ag concentration surpasses 3.5 weight %, specific conductivity reduces.And, if be because Ag concentration less than 1.0 weight %, the volume fraction of the eutectic phase of Cu and Ag is just less than 3%, intensity raising effect is insufficient.
The volume fraction of the eutectic phase of Cu and Ag is defined as 3～20%, if be that the volume fraction of Cu matrix self just reduces because volume fraction surpasses 20%, specific conductivity will be less than 80%IACS.And, if be because volume fraction less than 3%, the raising effect of tensile strength is insufficient, can be less than 800MPa.
Tensile strength is defined as more than or equal to 800MPa, is preferably greater than or equals 840MPa, be because and the Cu-Sn that is used for conductors such as bantam such as medical probe cable at present be that the tensile strength (approximately more than or equal to 850MPa) of superfine copper alloy wire is roughly equal or more than it.
The superfine copper alloy wire of relevant present embodiment uses with the state of the stranded wire rod of the single line material of former state or stranded several superfine copper alloy wires.
The manufacture method of present embodiment then, is described with reference to the accompanying drawings.
As shown in Figure 1, the manufacture method of the superfine copper alloy wire 30 of relevant present embodiment is through order manufacturing shown below.
At first, high-purity C u (copper base metal) 11 and the Ag 12 that use the summation of impurity concentration to be less than or equal to 10ppm, preferably to be less than or equal to 1ppm carry out melting (steps A), make molten alloyed copper 10.After making high-purity C u 11 fusings at first, in the Cu liquation, add Ag 12 and carry out melting.When this melting,, adjust the amount of high-purity C u11 and Ag 12 for the chemical constitution that makes molten alloyed copper 10 becomes Cu-1.0～3.5 weight %Ag.In addition, the fusing of preferred high-purity C u 11 is in vacuum atmosphere, and the fusing of Ag12 is as carrying out in Ar atmosphere is enclosed in atmosphere of inert gases.
Then, this molten alloyed copper 10 is cast in the casting mold, casts (cast) (step B).Not solidified molten alloyed copper 10 after the cast cools off (step C) with the speed of cooling of 400～500 (not containing 500) ℃/min, forms cast body 20.As castmethod, can be any one of Continuous casting process, interrupter method, but the Continuous casting process of preferred productivity excellence.
Subsequently, cast body 20 is implemented a cold working (step D) at least as undergauge processing, obtain hot candied material 21.In this said cold working, be the general name that various sections such as hot candied processing, rolling processing, rotary swaging shrink processing.
Then, this wire drawing material 21 is implemented the thermal treatment (step e 1) of 300～350 ℃ * 10～20 hours, 350～450 ℃ * 5～10 hours or 450～550 ℃ * 0.5～5 hour.In these heat-treat conditions, most preferably 350～450 ℃ * 5～10 hours.Hot candied material after the thermal treatment 21 is implemented chilling to be handled.Handle as this chilling, can enumerate water-cooled processing etc.The suitable thermal treatment of the thermal treatment of step e 1 as interrupter method.For example, the hot candied material 21 that batches on reel etc. is imported to the thermal treatment of carrying out step e 1 in the process furnace.In addition, this thermal treatment preferably in atmosphere of inert gases as in Ar atmosphere is enclosed, carrying out.
At last, the hot candied material 21 of chilling is implemented cold working (final cold working) (step D end) once again, make finish line directly be less than or equal to 0.05mm, obtain the superfine copper alloy wire 30 of relevant present embodiment.
Here, the Ag concentration in the molten alloyed copper 10 is 1.0～3.5 weight %, is less than or equal to the solid solution limit.Therefore, when forming cast body in that not solidified molten alloyed copper 10 is cooled off lentamente or apace, the eutectic phase of Cu and Ag can not separated out in the Cu of cast body matrix in crystallization.Therefore, need cool off not solidified molten alloyed copper 10 with given speed of cooling.
The manufacture method of relevant present embodiment, in step C, the speed of cooling when forming cast body 20 is adjusted at 400～500 (not containing 500) ℃/min, preferably scope of 400～480 ℃/min.Thus, although the Ag concentration in the molten alloyed copper is 1.0～3.5 weight % that are less than or equal to the solid solution limit, in the Cu of cast body 20 matrix, the eutectic phase of Cu and Ag is separated out with the mesh crystallization.The crystallization of this eutectic phase separate out ratio (volume percent) be cast body (wire rod) 20 whole volumes 3～20%.In above-mentioned speed of cooling scope, speed of cooling is fast more, can reduce the volume percent of eutectic phase more.For example, when using continuous casting machine, by adjusting the draw rate of continuous casting sheet, just can carry out the adjustment of speed of cooling, draw rate is fast more, can accelerate speed of cooling more.
By this cast body 20 is implemented cold working, form hot candied material 21, the eutectic phase of separating out with the mesh crystallization along hot candied material 21 vertically with fibrous extension, as the reinforcing fiber dispersion of materials of Cu matrix.Solidify by this fiber strengthening and processing, the tensile strength of hot candied material 21 and then superfine copper alloy wire 30 significantly improves.
In addition, the manufacture method of relevant present embodiment in step e 1, is implemented 300～550 ℃ * 0.5～20 hour thermal treatment to hot candied material 21.By this thermal treatment, the Cu crystallization generation recrystallize in the hot candied material 21 and remove the processing strain.In addition, by this thermal treatment, when the Ag in the Cu solid phase of solid solution in the Cu of hot candied material 21 matrix and eutectic phase was separated out, the Cu in the Ag solid phase of solid solution in the eutectic phase of hot candied material 21 was separated out.By removing the processing strain, the elongation property of hot candied material 21 becomes well, the working modulus in the time of can improving cold working after this.In addition, separate out with Cu by Ag and to separate out, the specific conductivity of hot candied material 21 and then superfine copper alloy wire 30 improves.
Thermal treatment temp is defined as 300～550 ℃, is because if less than 300 ℃, and the processing strained removal effect of hot candied material 21 just becomes insufficient.In addition, be that solid solution again can take place for Ag precipitated phase and Cu precipitated phase because if surpass 550 ℃, the specific conductivity of hot candied material 21 and then superfine copper alloy wire 30 reduces.Make under the identical situation of heat treatment time, thermal treatment temp is high more, and processing strained removal amount just increases (tensile strength reduction) more, and meanwhile Ag precipitated phase and Cu precipitated phase carry out solid solution again (specific conductivity reduction).In addition, make under the identical situation of thermal treatment temp, heat treatment time is long more, and processing strained removal amount just increases more, and meanwhile Ag precipitated phase and Cu precipitated phase carry out solid solution again.
From as can be known above, the superfine copper alloy wire 30 of relevant present embodiment although Ag concentration is low to 1.0～3.5 weight %, also can be realized getting both more than or equal to the high-tensile of 800MPa with more than or equal to the high conductivity of 80%IACS.Thereby the superfine copper alloy wire 30 of relevant present embodiment along with the usage quantity of the Ag of costliness reduces, can correspondingly obtain the superfine copper alloy wire of high-tensile, high conductivity at an easy rate.
In addition, the superfine copper alloy wire 30 of relevant present embodiment arrives more than or equal to 1.1% because unit elongation is also high, and bendability is also good.Thereby the superfine copper alloy wire 30 of relevant present embodiment also can be used as the superfine wire rod that requires resistance to bend(ing).
In addition, suitable electric power supply line or signal wire of the superfine copper alloy wire 30 of relevant present embodiment as miniaturized electronics such as medical probe cable, mobile equipment, robot etc.
The manufacture method of the superfine copper alloy wire of relevant another preferred forms of the present invention then, is described with reference to the accompanying drawings.
As shown in Figure 2, about the manufacture method of the superfine copper alloy wire of the manufacture method of the superfine copper alloy wire of present embodiment and relevant preceding embodiment shown in Figure 1, to the formation operation of hot candied material 21 be identical.Therefore, in the manufacture method of the superfine copper alloy wire of present embodiment, begin explanation from heat treatment step to hot candied material 21.
Move the state of hot candied material 21 at mobile production line, hot candied material 21 was implemented 600～900 ℃ * 5～120 seconds, preferred 700～900 ℃ * 5～80 seconds, more preferably 750～850 ℃ * 5～40 seconds thermal treatment (step e 2).This thermal treatment is to carry out as the soaking zone (soaking zone) that makes mobile hot candied material 21 processes be adjusted to 600～900 ℃.Heat-up time can be by regulating hot candied material 21 translational speed and/or the length of soaking zone freely adjust.In addition, this thermal treatment also can be by carrying out the hot candied material 21 energising heating of moving.At this moment, the translational speed that heat-up time can be by regulating hot candied material 21 and/or be used to applies between the electrode of voltage length and freely adjusts.In addition, this thermal treatment preferably in atmosphere of inert gases as in Ar atmosphere is enclosed, carrying out.
At last, the hot candied material 21 of chilling is implemented cold working (final cold working) (step D end) once again, make finish line directly be less than or equal to 0.05mm, obtain the superfine copper alloy wire 40 of relevant present embodiment.
By the superfine copper alloy wire 40 that the manufacture method of relevant present embodiment obtains, also can access the identical action effect of the superfine copper alloy wire that obtains with manufacture method 30 by relevant preceding embodiment.In addition, the manufacture method of relevant present embodiment can be heat-treated hot candied material 21 with 5～120 seconds so very short time, and therefore the superfine copper alloy wire 40 that obtains is compared with superfine copper alloy wire 30, and productivity is better.
The superfine copper alloy wire 30 that the superfine copper alloy wire 40 that is obtained by the manufacture method of relevant present embodiment and the manufacture method of relevant preceding embodiment obtain similarly is made of the copper alloy monomer.But the layer structure of superfine copper alloy wire 40 is not limited to single layer structure, also can be multilayer structure.For example, also can be the body that constitutes at the copper alloy that by chemical constitution is Cu-1.0～3.5 weight %Ag around the structure of Ag tunicle is set.The thickness of Ag tunicle is as 1～10% of all diameters of superfine copper alloy wire, is preferably 3～6%.
The formation of Ag tunicle is as carrying out after final cold working.Specifically, after the hot candied material 21 of chilling is implemented final cold working, hot candied material 21 is implemented plating Ag handle.At this moment, carry out the adjustment of coating film thickness, make finish line directly be less than or equal to 0.05mm.Thus, around hot candied material 21 (body), form the Ag tunicle, obtain double-deck superfine copper alloy wire 40.By forming the Ag tunicle, one side is guaranteed the tensile strength of superfine copper alloy wire 40 fully, and one side can further improve specific conductivity.
More than, the specific embodiment of the present invention has been described, but the present invention is not limited to above-mentioned embodiment, much less, in addition also can imagine various embodiments.
Then, the present invention is described, but the present invention is not limited to this embodiment according to embodiment.
As the mother metal that is used for the manufactured copper alloy, use Cu containing ratio is that the concentration of 99.9999 weight %, inevitable impurity is total up to the high-purity C u wire rod of 0.5ppm.After the surface of this wire rod carried out pickling, be seated in fixing and be arranged in the high purity graphite crucible in the vacuum chamber, carry out the vacuum melting of high-purity C u wire rod.After high-purity C u wire rod melts fully, indoor vacuum is replaced as argon atmosphere.After this, the pure Ag wire rod of filling carries out the melting of molten alloyed copper in the high purity graphite crucible.At this moment, carry out the adjustment of the loadings of pure Ag wire rod, the chemical constitution that makes molten alloyed copper is Cu-2.0 weight %Ag.
The molten alloyed copper that obtains is poured in the graphite system casting mold of continuous casting equipment, carries out the continuous casting of the roughing line (cast body) of diameter 8.0mm.The speed of cooling of molten alloyed copper is defined as 450 ℃/min.
To this roughing line implement once hot candied processing (relative reduction in area: about 89.4%), form hot candied material after, this wire drawing material is implemented peeling processing, cleanup acid treatment and is formed diameter 2.6mm.After this, implement hot candied material is heated to 400 ℃ and keep using the such thermal treatment of cold water chilling again after 10 hours in Ar atmosphere is enclosed.Hot candied material after this thermal treatment is implemented the hot candied processing of secondary (relative reduction in area: about 99.9%), make the superfine copper alloy wire of diameter 0.016mm.
Embodiment 2
Being poured in the graphite system casting mold of continuous casting equipment, carry out the continuous casting of the roughing line (cast body) of diameter 8.0mm with embodiment 1 identical molten alloyed copper.The speed of cooling of molten alloyed copper is defined as 425 ℃/min.
To this roughing line implement once hot candied processing (relative reduction in area: about 98.7%) form hot candied material after, this wire drawing material is implemented peeling processing, cleanup acid treatment and is formed diameter 0.9mm.After this, implement hot candied material is moved such thermal treatment in 20 seconds in Ar atmosphere is enclosed in 800 ℃ soaking zone.Hot candied material after this thermal treatment is implemented the hot candied processing of secondary (relative reduction in area: about 99.9%), this wire drawing material is implemented plating Ag handle, make the superfine copper alloy wire of diameter 0.016mm.
Embodiment 3
Similarly carry out the melting that chemical constitution is the molten alloyed copper of Cu-1.5 weight %Ag with embodiment 1.The molten alloyed copper that obtains is poured in the graphite system casting mold of continuous casting equipment, carries out the continuous casting of the roughing line (cast body) of diameter 8.0mm.The speed of cooling of molten alloyed copper is defined as 450 ℃/min.
To this roughing line implement once hot candied processing (relative reduction in area: about 98.7%) form hot candied material after, this wire drawing material is implemented peeling processing, cleanup acid treatment and is formed diameter 0.9mm.Then, implement hot candied material is heated to 400 ℃ and keep using the such thermal treatment of cold water chilling again after 5 hours in Ar atmosphere is enclosed.Hot candied material after this thermal treatment is implemented the hot candied processing of secondary (relative reduction in area: about 99.9%), make the superfine copper alloy wire of diameter 0.016mm.
Embodiment 4
Similarly carry out the melting that chemical constitution is the molten alloyed copper of Cu-3.0 weight %Ag with embodiment 1.The molten alloyed copper that obtains is poured in the graphite system casting mold of continuous casting equipment, carries out the continuous casting of the roughing line (cast body) of diameter 8.0mm.The speed of cooling of molten alloyed copper is defined as 450 ℃/min.
Then, the Heating temperature except thermal treatment the time is defined as 500 ℃ and embodiment 3 similarly makes the superfine copper alloy wire of diameter 0.016mm.
Comparative example 1
Similarly carry out the melting that chemical constitution is the molten alloyed copper of Cu-0.4 weight %Ag with embodiment 1.The molten alloyed copper that obtains is poured in the graphite system casting mold of continuous casting equipment, carries out the continuous casting of the roughing line (cast body) of diameter 8.0mm.The speed of cooling of molten alloyed copper is defined as 450 ℃/min.
Then, the hold-time except thermal treatment the time is defined as 10 hours and embodiment 3 similarly makes the superfine copper alloy wire of diameter 0.016mm.
Comparative example 2
Similarly carry out the melting that chemical constitution is the molten alloyed copper of Cu-1.5 weight %Ag with embodiment 1.The molten alloyed copper that obtains is poured in the graphite system casting mold of continuous casting equipment, carries out the continuous casting of the roughing line (cast body) of diameter 8.0mm.The speed of cooling of molten alloyed copper is defined as 500 ℃/min.
Then, the hold-time except thermal treatment the time is defined as 10 hours and embodiment 3 similarly makes the superfine copper alloy wire of diameter 0.016mm.
Comparative example 3
Similarly carry out the melting that chemical constitution is the molten alloyed copper of Cu-5.0 weight %Ag with embodiment 1.The molten alloyed copper that obtains is poured in the graphite system casting mold of continuous casting equipment, carries out the continuous casting of the roughing line (cast body) of diameter 8.0mm.The speed of cooling of molten alloyed copper is defined as 450 ℃/min.
Then, the Heating temperature except thermal treatment the time is defined as 450 ℃, hold-time and is defined as 10 hours and embodiment 3 similarly makes the superfine copper alloy wire of diameter 0.016mm.
To the embodiment 1～4 that obtains and each superfine copper alloy wire of comparative example 1～3, carry out eutectic phase the line is busy volume percent (%), tensile strength (MPa), the unit elongation (%) of whole volumes of material, the evaluation of specific conductivity (%IACS).Its evaluation result is shown in Table 1.
Table 1
As shown in table 1, each superfine copper alloy wire of embodiment 1～4, the Ag concentration range in the copper alloy composition, speed of cooling scope, and the volume percent of eutectic phase all be adjusted in the specialized range.Therefore, tensile strength is that 840～1100MPa, unit elongation are 1.2～1.5%, specific conductivity is 81～90%IACS, and is all good.
In contrast to this, the superfine copper alloy wire of comparative example 1, its unit elongation (1.3%) and specific conductivity (95%IACS) are all good.But, the superfine copper alloy wire of comparative example 1, the Ag concentration during copper alloy is formed is 0.4 weight % less than specialized range (1.0～3.5 weight %).Because Ag concentration is low excessively, thus can not make eutectic phase fully crystallization separate out, the volume percent of eutectic phase becomes 0%.Its result can not expect the reinforcement that brought by eutectic phase, and tensile strength becomes the 700MPa less than specialized range (more than or equal to 800MPa).
And, the superfine copper alloy wire of comparative example 2, its unit elongation (1.3%) and specific conductivity (88%IACS) are all good.But, the superfine copper alloy wire of comparative example 2, speed of cooling is 500 ℃/min, has surpassed specialized range (400～500 (not containing 500) ℃/min).Because speed of cooling is too fast, thus can not make eutectic phase fully crystallization separate out, the volume percent of eutectic phase becomes 0.8%.Its result can not expect the reinforcement that brought by eutectic phase, and tensile strength becomes the 780MPa less than specialized range (more than or equal to 800MPa).
In addition, the superfine copper alloy wire of comparative example 3, its tensile strength (1300MPa) is good.But, the superfine copper alloy wire of comparative example 3, the Ag concentration during its copper alloy is formed is 5.0 weight %, has surpassed specialized range.Because the Ag excessive concentration, so the volume percent surplus of eutectic phase is 25%.Its result, specific conductivity are reduced to the 72%IACS less than specialized range (more than or equal to 80%IACS).And unit elongation is 1.0%, and is also low slightly.
Claims (7)
1. superfine copper alloy wire, it is the superfine copper alloy wire that finish line directly is less than or equal to 0.05mm, it is characterized in that, the volume ratio that by chemical constitution is the eutectic phase of the Cu of whole volumes of Cu-1.0～3.5 weight %Ag and the line is busy material and Ag is that 3～20% copper alloy constitutes, and tensile strength more than or equal to 800MPa, specific conductivity more than or equal to 80%IACS.
2. superfine copper alloy wire, it is the superfine copper alloy wire that finish line directly is less than or equal to 0.05mm, it is characterized in that, the volume ratio that by chemical constitution is the eutectic phase of the Cu of whole volumes of Cu-1.0～3.5 weight %Ag and the line is busy material and Ag be the body that constitutes of 3～20% copper alloy around the Ag tunicle be set constitute, and tensile strength more than or equal to 800MPa, specific conductivity more than or equal to 80%IACS.
3. the manufacture method of a superfine copper alloy wire, it is to make the method that finish line directly is less than or equal to the superfine copper alloy wire of 0.05mm, it is characterized in that, the summation that is cast in impurity concentration in casting mold is less than or equal in the copper base metal of 10ppm the molten alloyed copper that ratio with 1.0～3.5 weight % contains Ag and casts, to form cast body more than or equal to 400 ℃/min and less than the not solidified molten alloyed copper after the speed of cooling cooling cast of 500 ℃/min, on this cast body,, the hot candied material after this cold working is implemented recrystallize handle as the cold worked while of undergauge processing and implementation.
4. the manufacture method of superfine copper alloy wire according to claim 3 wherein, is handled as above-mentioned recrystallize, carries out temperature and be 300～550 ℃ and time and be 0.5～20 hour thermal treatment.
5. the manufacture method of superfine copper alloy wire according to claim 4 wherein, is implemented chilling to the hot candied material after the above-mentioned thermal treatment and is handled.
6. the manufacture method of superfine copper alloy wire according to claim 3 wherein, is handled as above-mentioned recrystallize, carries out temperature and be 600～900 ℃ and time and be 5～120 seconds rapid heating and chilling processing.
7. the manufacture method of superfine copper alloy wire according to claim 6 wherein, is implemented plating Ag to the hot candied material after the above-mentioned recrystallize processing and is handled.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-153304 | 2004-05-24 | ||
| JP2004153304 | 2004-05-24 | ||
| JP2004153304A JP4311277B2 (en) | 2004-05-24 | 2004-05-24 | Manufacturing method of extra fine copper alloy wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1702180A CN1702180A (en) | 2005-11-30 |
| CN100422364C true CN100422364C (en) | 2008-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100660676A Active CN100422364C (en) | 2004-05-24 | 2005-04-20 | Superfine copper alloy wire and method for manufacturing same |
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| Country | Link |
|---|---|
| US (2) | US20050260438A1 (en) |
| JP (1) | JP4311277B2 (en) |
| CN (1) | CN100422364C (en) |
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| CN116710588A (en) * | 2021-11-12 | 2023-09-05 | 古河电气工业株式会社 | Cu-Ag alloy wire |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103809A (en) * | 1992-09-16 | 1994-04-15 | Showa Electric Wire & Cable Co Ltd | Manufacture of cu-ag alloy wire |
| JPH11293431A (en) * | 1998-04-13 | 1999-10-26 | Furukawa Electric Co Ltd:The | Production of copper alloy extra fine wire |
| JP2000169918A (en) * | 1998-12-04 | 2000-06-20 | Fujikura Ltd | Extra-thin wire and its production |
| JP2000199042A (en) * | 1998-11-04 | 2000-07-18 | Showa Electric Wire & Cable Co Ltd | PRODUCTION OF Cu-Ag ALLOY WIRE ROD AND Cu-Ag ALLOY WIRE ROD |
| JP2001040439A (en) * | 1999-07-28 | 2001-02-13 | Sumitomo Electric Ind Ltd | Cu-Ag ALLOY AND ITS MANUFACTURE |
| JP2001176332A (en) * | 1999-12-15 | 2001-06-29 | Hitachi Cable Ltd | Composite conductor, its manufacturing method, and cable using the same |
| JP2002121629A (en) * | 2000-10-13 | 2002-04-26 | Hitachi Cable Ltd | Super-extra-fine copper-alloy wire, copper-alloy stranded-wire conductor, extra-fine coaxial cable, and method for manufacturing super-extra-fine copper-alloy wire |
| JP2004055179A (en) * | 2002-07-17 | 2004-02-19 | Showa Electric Wire & Cable Co Ltd | Copper-silver alloy stranded conductor, sheet heating element using it, and terminal machining method for it |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63274796A (en) * | 1987-05-06 | 1988-11-11 | Sumitomo Electric Ind Ltd | Plated wire and production thereof |
| JP3325639B2 (en) | 1993-03-31 | 2002-09-17 | 株式会社フジクラ | Manufacturing method of high strength and high conductivity copper alloy |
| JP3325641B2 (en) | 1993-03-31 | 2002-09-17 | 株式会社フジクラ | Method for producing high-strength high-conductivity copper alloy |
| JP3325638B2 (en) | 1993-03-31 | 2002-09-17 | 株式会社フジクラ | Method for producing high-strength high-conductivity copper alloy |
| JP3325640B2 (en) | 1993-03-31 | 2002-09-17 | 株式会社フジクラ | Method for producing high-strength high-conductivity copper alloy |
| JP2000239766A (en) * | 1999-02-19 | 2000-09-05 | Sumitomo Electric Ind Ltd | Production of wear resistant trolley wire |
| JP2001148205A (en) * | 1999-11-19 | 2001-05-29 | Hitachi Cable Ltd | Material for ultra thin copper alloy wire and its method of manufacturing |
-
2004
- 2004-05-24 JP JP2004153304A patent/JP4311277B2/en active Active
-
2005
- 2005-02-08 US US11/052,226 patent/US20050260438A1/en not_active Abandoned
- 2005-04-20 CN CNB2005100660676A patent/CN100422364C/en active Active
-
2008
- 2008-04-08 US US12/078,939 patent/US8163110B2/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103809A (en) * | 1992-09-16 | 1994-04-15 | Showa Electric Wire & Cable Co Ltd | Manufacture of cu-ag alloy wire |
| JPH11293431A (en) * | 1998-04-13 | 1999-10-26 | Furukawa Electric Co Ltd:The | Production of copper alloy extra fine wire |
| JP2000199042A (en) * | 1998-11-04 | 2000-07-18 | Showa Electric Wire & Cable Co Ltd | PRODUCTION OF Cu-Ag ALLOY WIRE ROD AND Cu-Ag ALLOY WIRE ROD |
| JP2000169918A (en) * | 1998-12-04 | 2000-06-20 | Fujikura Ltd | Extra-thin wire and its production |
| JP2001040439A (en) * | 1999-07-28 | 2001-02-13 | Sumitomo Electric Ind Ltd | Cu-Ag ALLOY AND ITS MANUFACTURE |
| JP2001176332A (en) * | 1999-12-15 | 2001-06-29 | Hitachi Cable Ltd | Composite conductor, its manufacturing method, and cable using the same |
| JP2002121629A (en) * | 2000-10-13 | 2002-04-26 | Hitachi Cable Ltd | Super-extra-fine copper-alloy wire, copper-alloy stranded-wire conductor, extra-fine coaxial cable, and method for manufacturing super-extra-fine copper-alloy wire |
| JP2004055179A (en) * | 2002-07-17 | 2004-02-19 | Showa Electric Wire & Cable Co Ltd | Copper-silver alloy stranded conductor, sheet heating element using it, and terminal machining method for it |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005336510A (en) | 2005-12-08 |
| JP4311277B2 (en) | 2009-08-12 |
| US20050260438A1 (en) | 2005-11-24 |
| US8163110B2 (en) | 2012-04-24 |
| US20080202648A1 (en) | 2008-08-28 |
| CN1702180A (en) | 2005-11-30 |
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